eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/sessions/SessionsViewPart.java

   1 /**
   2  * Copyright (C) 2015 EDIT
   3  * European Distributed Institute of Taxonomy
   4  * http://www.e-taxonomy.eu
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version 1.1
   7  * See LICENSE.TXT at the top of this package for the full license terms.
   8  */
   9 package eu.etaxonomy.taxeditor.view.sessions;
  10
  11 import java.text.DecimalFormat;
  12 import java.util.Collection;
  13
  14 import javax.annotation.PostConstruct;
  15 import javax.inject.Inject;
  16
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.events.SelectionAdapter;
  19 import org.eclipse.swt.events.SelectionEvent;
  20 import org.eclipse.swt.layout.GridData;
  21 import org.eclipse.swt.layout.GridLayout;
  22 import org.eclipse.swt.widgets.Button;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Label;
  25 import org.eclipse.swt.widgets.Table;
  26 import org.eclipse.swt.widgets.TableColumn;
  27 import org.eclipse.swt.widgets.TableItem;
  28 import org.eclipse.swt.widgets.Text;
  29 import org.eclipse.wb.swt.SWTResourceManager;
  30
  31 import eu.etaxonomy.cdm.api.cache.CdmCacher;
  32 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  33 import eu.etaxonomy.taxeditor.remoting.cache.CdmRemoteCacheManager;
  34 import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
  35 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager;
  36 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManagerObserver;
  37 import eu.etaxonomy.taxeditor.session.NullSession;
  38 import eu.etaxonomy.taxeditor.store.CdmStore;
  39 import net.sf.ehcache.Cache;
  40 import net.sf.ehcache.CacheManager;
  41 import net.sf.ehcache.statistics.LiveCacheStatistics;
  42
  43 /**
  44  * @author cmathew
  45  * @date 16 Feb 2015
  46  *
  47  */
  48 public class SessionsViewPart implements ICdmEntitySessionManagerObserver {
  49
  50     public static final String ID = "eu.etaxonomy.taxeditor.view.sessions.SessionsViewPart"; //$NON-NLS-1$
  51     public static final String OPEN_INSPECT_SESSIONS_DIALOG_ID =  "eu.etaxonomy.taxeditor.store.open.InspectSessionsDialog";
  52     private Table tableSessions;
  53
  54     private final String[] titles = { "Owner", "In Memory", "On Disk"};
  55
  56     private final ICdmEntitySessionManager cdmEntitySessionManager;
  57     private Text txtNoOfSessions;
  58     private Text txtNoOfCaches;
  59     private Text txtDefaultInMemory;
  60     private Text txtCdmModelInMemory;
  61     private Text txtCdmModelOnDisk;
  62     private Text txtDefaultOnDisk;
  63
  64     @Inject
  65     public SessionsViewPart() {
  66         this.cdmEntitySessionManager = CdmStore.getCurrentSessionManager();
  67         if(cdmEntitySessionManager != null) {
  68             cdmEntitySessionManager.addSessionObserver(this);
  69         }
  70     }
  71
  72     /**
  73      * Create contents of the view part.
  74      * @param parent
  75      */
  76     @PostConstruct
  77     public void createPartControl(Composite parent) {
  78         Composite container = new Composite(parent, SWT.NONE);
  79         container.setLayout(new GridLayout(5, false));
  80         {
  81             Label lblNoOfSessions = new Label(container, SWT.NONE);
  82             lblNoOfSessions.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
  83             lblNoOfSessions.setAlignment(SWT.RIGHT);
  84             GridData gd_lblNoOfSessions = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1);
  85             gd_lblNoOfSessions.widthHint = 115;
  86             gd_lblNoOfSessions.minimumHeight = 30;
  87             lblNoOfSessions.setLayoutData(gd_lblNoOfSessions);
  88             lblNoOfSessions.setText("No. of Sessions : ");
  89         }
  90         {
  91             txtNoOfSessions = new Text(container, SWT.BORDER);
  92             txtNoOfSessions.setEditable(false);
  93             txtNoOfSessions.setBackground(SWTResourceManager.getColor(SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT));
  94             GridData gd_txtNoOfSessions = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
  95             gd_txtNoOfSessions.widthHint = 50;
  96             txtNoOfSessions.setLayoutData(gd_txtNoOfSessions);
  97         }
  98         new Label(container, SWT.NONE);
  99         new Label(container, SWT.NONE);
 100         new Label(container, SWT.NONE);
 101         {
 102             Label lblNoOfCaches = new Label(container, SWT.CENTER);
 103             lblNoOfCaches.setAlignment(SWT.RIGHT);
 104             lblNoOfCaches.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 105             GridData gd_lblNoOfCaches = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
 106             gd_lblNoOfCaches.widthHint = 150;
 107             lblNoOfCaches.setLayoutData(gd_lblNoOfCaches);
 108             lblNoOfCaches.setText("No. of entity caches : ");
 109         }
 110         {
 111             txtNoOfCaches = new Text(container, SWT.BORDER);
 112             txtNoOfCaches.setEditable(false);
 113             GridData gd_txtNoOfCaches = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 114             gd_txtNoOfCaches.widthHint = 50;
 115             txtNoOfCaches.setLayoutData(gd_txtNoOfCaches);
 116         }
 117         new Label(container, SWT.NONE);
 118         new Label(container, SWT.NONE);
 119         new Label(container, SWT.NONE);
 120
 121         {
 122             Label lblDefaultCache = new Label(container, SWT.CENTER);
 123             lblDefaultCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 124             lblDefaultCache.setText("Default Cache, ");
 125             lblDefaultCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 126             lblDefaultCache.setAlignment(SWT.RIGHT);
 127         }
 128         {
 129             Label lblDefaultInMemory = new Label(container, SWT.CENTER);
 130             lblDefaultInMemory.setText("in Memory : ");
 131             lblDefaultInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 132             lblDefaultInMemory.setAlignment(SWT.RIGHT);
 133             lblDefaultInMemory.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 134         }
 135         {
 136             txtDefaultInMemory = new Text(container, SWT.BORDER);
 137             txtDefaultInMemory.setEditable(false);
 138             GridData gd_txtDefaultInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 139             gd_txtDefaultInMemory.widthHint = 130;
 140             txtDefaultInMemory.setLayoutData(gd_txtDefaultInMemory);
 141         }
 142         {
 143             Label lblDefaultOnDisk = new Label(container, SWT.CENTER);
 144             lblDefaultOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 145             lblDefaultOnDisk.setText("on Disk : ");
 146             lblDefaultOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 147             lblDefaultOnDisk.setAlignment(SWT.RIGHT);
 148         }
 149         {
 150             txtDefaultOnDisk = new Text(container, SWT.BORDER);
 151             txtDefaultOnDisk.setEditable(false);
 152             txtDefaultOnDisk.setText("");
 153             GridData gd_txtDefaultOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 154             gd_txtDefaultOnDisk.widthHint = 130;
 155             txtDefaultOnDisk.setLayoutData(gd_txtDefaultOnDisk);
 156         }
 157         {
 158             Label lblCdmModelCache = new Label(container, SWT.CENTER);
 159             lblCdmModelCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 160             lblCdmModelCache.setText("CDM Model Cache, ");
 161             lblCdmModelCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 162             lblCdmModelCache.setAlignment(SWT.RIGHT);
 163         }
 164         {
 165             Label lblCdmModelInMemory = new Label(container, SWT.CENTER);
 166             lblCdmModelInMemory.setText("in Memory : ");
 167             lblCdmModelInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 168             lblCdmModelInMemory.setAlignment(SWT.RIGHT);
 169             GridData gd_lblCdmModelInMemory = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
 170             gd_lblCdmModelInMemory.widthHint = 86;
 171             lblCdmModelInMemory.setLayoutData(gd_lblCdmModelInMemory);
 172         }
 173         {
 174             txtCdmModelInMemory = new Text(container, SWT.BORDER);
 175             txtCdmModelInMemory.setEditable(false);
 176             GridData gd_txtCdmModelInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 177             gd_txtCdmModelInMemory.widthHint = 130;
 178             txtCdmModelInMemory.setLayoutData(gd_txtCdmModelInMemory);
 179         }
 180         {
 181             Label lblCdmModelOnDisk = new Label(container, SWT.CENTER);
 182             lblCdmModelOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 183             lblCdmModelOnDisk.setText("on Disk : ");
 184             lblCdmModelOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 185             lblCdmModelOnDisk.setAlignment(SWT.RIGHT);
 186         }
 187         {
 188             txtCdmModelOnDisk = new Text(container, SWT.BORDER);
 189             txtCdmModelOnDisk.setEditable(false);
 190             txtCdmModelOnDisk.setText("");
 191             GridData gd_txtCdmModelOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 192             gd_txtCdmModelOnDisk.widthHint = 130;
 193             txtCdmModelOnDisk.setLayoutData(gd_txtCdmModelOnDisk);
 194         }
 195         {
 196             Button btnRefresh = new Button(container, SWT.NONE);
 197             btnRefresh.addSelectionListener(new SelectionAdapter() {
 198                 @Override
 199                 public void widgetSelected(SelectionEvent e) {
 200                     changed();
 201                 }
 202             });
 203             GridData gd_btnRefresh = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
 204             gd_btnRefresh.widthHint = 100;
 205             btnRefresh.setLayoutData(gd_btnRefresh);
 206             btnRefresh.setText("Refresh");
 207         }
 208         {
 209             Button btnInspectActiveSession = new Button(container, SWT.NONE);
 210             btnInspectActiveSession.addSelectionListener(new SelectionAdapter() {
 211                 @Override
 212                 public void widgetSelected(SelectionEvent e) {
 213                     AbstractUtility.executeCommand(OPEN_INSPECT_SESSIONS_DIALOG_ID, this, null);
 214                 }
 215             });
 216             btnInspectActiveSession.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 2, 1));
 217             btnInspectActiveSession.setText("Inspect Active Session");
 218         }
 219         new Label(container, SWT.NONE);
 220         new Label(container, SWT.NONE);
 221
 222         {
 223             tableSessions = new Table(container, SWT.BORDER | SWT.FULL_SELECTION);
 224             GridData gd_tableSessions = new GridData(SWT.FILL, SWT.FILL, true, true, 5, 1);
 225             gd_tableSessions.widthHint = 769;
 226             tableSessions.setLayoutData(gd_tableSessions);
 227             tableSessions.setHeaderVisible(true);
 228             tableSessions.setLinesVisible(true);
 229         }
 230
 231         createActions();
 232     }
 233
 234     /**
 235      * Create the actions.
 236      */
 237     private void createActions() {
 238
 239
 240         for (String title : titles) {
 241             TableColumn column = new TableColumn(tableSessions, SWT.NULL);
 242             column.setWidth(200);
 243             column.setText(title);
 244         }
 245         changed();
 246
 247     }
 248
 249
 250     @Override
 251     public void changed() {
 252         if(tableSessions.isDisposed()) {
 253             return;
 254         }
 255         tableSessions.removeAll();
 256         if(cdmEntitySessionManager != null) {
 257             Collection<ICdmEntitySession> sessions = cdmEntitySessionManager.getSessions();
 258             txtNoOfSessions.setText(String.valueOf(sessions.size()));
 259             for(ICdmEntitySession session : sessions) {
 260                 addSession(session);
 261             }
 262             ICdmEntitySession nullSession = cdmEntitySessionManager.getNullSession();
 263             if(nullSession != null) {
 264                 addSession(nullSession);
 265             }
 266             for (int i=0; i<titles.length; i++) {
 267                 tableSessions.getColumn (i).pack ();
 268             }
 269         }
 270
 271         CdmRemoteCacheManager instance = CdmRemoteCacheManager.getInstance();
 272         int cdmEnityCacheSize = CacheManager.create().getCacheNames().length;
 273         txtNoOfCaches.setText(String.valueOf(cdmEnityCacheSize));
 274
 275         Cache defaultCache = CacheManager.create().getCache(CdmCacher.DEFAULT_CACHE_NAME);
 276         txtDefaultInMemory.setText("");
 277         txtDefaultOnDisk.setText("");
 278         if(defaultCache != null) {
 279             LiveCacheStatistics liveCacheStatistics = defaultCache.getLiveCacheStatistics();
 280             txtDefaultInMemory.setText(getInMemoryStats(liveCacheStatistics));
 281             txtDefaultOnDisk.setText(getOnDiskStats(liveCacheStatistics));
 282         }
 283
 284         Cache cdmModelGetMethodsCache = instance.getCdmModelGetMethodsCache();
 285         txtCdmModelInMemory.setText("");
 286         txtCdmModelOnDisk.setText("");
 287         if(cdmModelGetMethodsCache != null) {
 288             LiveCacheStatistics liveCacheStatistics = cdmModelGetMethodsCache.getLiveCacheStatistics();
 289             txtCdmModelInMemory.setText(getInMemoryStats(liveCacheStatistics));
 290             txtCdmModelOnDisk.setText(getOnDiskStats(liveCacheStatistics));
 291         }
 292
 293     }
 294
 295     private void addSession(ICdmEntitySession session) {
 296
 297         TableItem item = new TableItem(tableSessions, SWT.NULL);
 298
 299         String activePrefix = "";
 300         if(session.isActive()) {
 301             activePrefix = "*";
 302         }
 303         String sessionOwnerString = "";
 304         if(session instanceof NullSession) {
 305             sessionOwnerString = "Null Session";
 306         } else {
 307             if(session.getOwner() != null) {
 308                 sessionOwnerString = session.getOwner().toString();
 309             }
 310         }
 311         item.setText(0, activePrefix + sessionOwnerString);
 312         LiveCacheStatistics cacheStatistics = session.getCacheStatistics();
 313         item.setText(1, getInMemoryStats(cacheStatistics));
 314         item.setText(2, getOnDiskStats(cacheStatistics));
 315     }
 316
 317     private String getInMemoryStats(LiveCacheStatistics statistics) {
 318         if(statistics != null) {
 319             long localHeapSize = statistics.getLocalHeapSize();
 320
 321             long localHeapSizeInBytes = statistics.getLocalHeapSizeInBytes();
 322             String localHeapSizeInBytesStr =
 323                     (new DecimalFormat("#.##")).format(localHeapSizeInBytes/1048576.0);
 324             return String.valueOf(localHeapSize) + " objects / " + localHeapSizeInBytesStr + " Mb";
 325         }
 326         return "";
 327     }
 328
 329     private String getOnDiskStats(LiveCacheStatistics statistics) {
 330         if(statistics != null) {
 331             long localDiskSize = statistics.getLocalDiskSize();
 332
 333             long localDiskSizeInBytes = statistics.getLocalDiskSizeInBytes();
 334             String localDiskSizeInBytesStr =
 335                     (new DecimalFormat("#.##")).format(localDiskSizeInBytes/1048576.0);
 336             return String.valueOf(localDiskSize) + " objects / " + localDiskSizeInBytesStr + " Mb";
 337         }
 338         return "";
 339     }
 340
 341
 342 }